INT OBSERVING LOG (ISAAC NEWTON GROUP, LA PALMA) TELESCOPE: INT DATE: 20001022 TAPE NR: OBSERVER: S. Hodgkin PROGRAMME: wide angle survey PATT/CAT REF.: WFS09+M31 TELESCOPE OPERATOR: SUPPORT ASTRONOMER: - TELESCOPE FOCUS: 46.15 mm CALIBRATE RESULTS: HI 42.58 +/- 3.37, DI -38.64 +/- 1.11, HC 54.76 +/- 2.44, Sky sigma 2.94 INSTRUMENT: WFC WFC FILTER WHEEL: i, r, U, Z, g, KPB WEATHER: (1st half) bad (2nd half) bad CLOUD COVER (%): (1st half) (2nd half) DUST (0-2): (1st half) 0 (2nd half) 0 SEEING (arcsec): (1st half) (2nd half) >3 DOME OPENED (UT): 01:45 METEOROLOGICAL PARAMETERS UT AirT Hum% Wspd Gust Wdir Press LocT IntT Mirr LocRH IntRH 19:00 2.7 86 72.9 76.9 4 768.7 3.3 10.9 12.2 77 51 20:00 4.1 67 78.4 83.3 349 768.7 3.9 10.8 12.2 47 52 21:00 2.9 49 61.4 71.8 354 768.6 3.2 10.8 12.2 44 34 22:00 2.9 12 81.2 85.3 8 768.9 3.6 10.8 12.1 10 28 23:00 2.9 22 74.5 78.3 12 769.3 3.5 11.0 12.2 19 19 00:00 2.8 26 69.4 76.8 10 769.2 4.0 11.3 12.2 16 18 01:00 2.4 26 71.2 79.4 6 769.0 3.3 11.3 12.1 24 20 02:00 0.9 58 60.0 69.9 7 769.0 1.5 3.7 10.1 61 51 03:00 3.5 27 64.3 72.9 3 768.7 3.0 5.1 8.6 37 20 04:00 2.7 38 58.2 65.0 353 768.7 2.1 4.4 8.4 61 35 05:00 4.9 12 60.1 64.5 9 769.1 4.7 7.3 9.3 18 16 SUNSET(UT) 18:43 EVENING TWILIGHT(UT) 19:54 MORNING TWILIGHT(UT) 05:58 SUNRISE(UT) 07:10 MOON'S QUARTER (1-4) 4 DISK % OF ILLUM. 24 DARK TIME 10:04 TWILIGHT TIME 02:23 MOONRISE(UT) 03:08 MOONSET(UT) No moonset within sunset-sunrise TIME LOST(WEATHER): 10:04 TIME LOST(TECHNICAL): 00:00 TIME LOST(OTHER): 00:00 COMMENTS: High wind prevented opening until 1:45am. Thereafter seeing >2.5 as. No data. Periodic closures for wind and humidity. Gave up at 5am Run no. Object name RA Dec. Equinox AM PA UT Exp. T. Filter Psys Channel Binning Comments 233810 Bias 0:00:00.00 +00:00:00.0 J2000.00 4.427 180.0 16:01:24.9 0.0 i Sloan 1 x 1 233811 Bias 0:00:00.00 +00:00:00.0 J2000.00 4.427 180.0 16:07:26.5 0.0 i Sloan 1 x 1 233812 Bias 0:00:00.00 +00:00:00.0 J2000.00 4.427 180.0 16:08:06.3 0.0 i Sloan 1 x 1 233813 Bias 0:00:00.00 +00:00:00.0 J2000.00 4.427 180.0 16:08:45.6 0.0 i Sloan 1 x 1 233814 Bias 0:00:00.00 +00:00:00.0 J2000.00 4.427 180.0 16:09:24.7 0.0 i Sloan 1 x 1 233815 Bias 0:00:00.00 +00:00:00.0 J2000.00 1.000 180.0 19:14:23.5 0.0 U RGO 1 x 1 233816 Focus run 0:54:59.99 +00:46:13.0 J2000.00 1.163 180.0 00:53:15.1 10.1 i Sloan 1 x 1 233817 Focus run 0:55:00.00 +00:46:13.1 J2000.00 1.196 180.0 01:16:11.9 10.1 i Sloan 1 x 1 233818 test 2:14:59.99 +59:24:00.1 J2000.00 1.184 180.0 02:21:23.3 30.1 i Sloan 1 x 1 233819 hhj3 3:48:50.40 +22:44:30.0 J2000.00 1.006 180.0 02:46:03.9 30.1 i Sloan 1 x 1 233820 hhj3 3:48:50.39 +22:44:30.1 J2000.00 1.006 180.0 02:56:10.7 30.1 i Sloan 1 x 1 233821 hhj3 3:48:50.40 +22:44:30.0 J2000.00 1.006 180.0 02:59:32.6 60.1 i Sloan 1 x 1